Apparatus for operating an electronic device in a bus network with a microcontroller and method therefor

摘要

The electronic microcontroller (21) has a bus protocol module (22) for communication with other electronic devices via a two-wire bus, with a semiconductor circuit (100) inserted into the signal path between the bus wires and the bus protocol module, which can be switched between a normal mode and a sleep mode in dependence on the status signal provided by the microcontroller. The microcontroller and the bus protocol module are supplied via a voltage regulator (20), having a control input (20.3) coupled to a control output of the semiconductor circuit.